Some definitional aphorisms taken from my subculture

A game is a fantasy world simulation with access to human oracles.
A mob is what happens when people of questionable loyalty have to collectively decide what it means to be loyal.
A neutral posture is one from which many actions can be initiated.
A norm is a societal tool for defeating the individual will.
A paralyzing fear of being wrong is higher than a solemn vow to pursue truth.
A prophet is a person who writes a small to medium number of sentences featuring suspicious capitalization.
A solemn vow to pursue truth is higher than a burning itch to acquire the superficial sense of knowledge.
Acid is stronger than friendship.
After some optimization, random mutations are detrimental. After much optimization, carefully planned changes are detrimental.
All plans, however great and extensive, have to pass through the narrow neck of present willingness.
Ambition that cannot be actualized is not a virtue.
An opinion is a belief backed with a weak weapon. A decree is a belief backed with a strong weapon.
Any sufficiently advanced tiger is indistinguishable from a forest fire.
Birds don't crawl.
Coincidences are God's way of remaining anonymous.
Death is the only truth.
Denotation is for simplifying the relation between signals and what they're evidence for.
Disappointment is anger for wimps.
Domains policed primarily through shame will eventually be dominated by the shameless.
Dreaming is for practicing forgetting.
Dreams do not know contradiction.
Everything happens so much.
Extremist fundamentalism is a fixed-point of the parody operator.
Fear of loss is not a strong place to stand.
Freedom is the freedom to equate freedom with one example of freedom.
Great minds think alike, at the end of their steady decline into mediocrity.
Hooglamp is the iterative self transcendence of the human spirit.
Humility is the ability to trust others to solve problems for you.
If nobody contradicts a loudly-stated claim, then the claim is true.
In computer science, solved problems remain solved.
Intimate proficiency grows from using stable tools.
It is not computationally feasible to treat all equivalent things the same.
It's not necessary or wise to be naked.
Life is a beauty pageant.
Loyalty to real estate is stupid, because loyalty is stupid.
Mathematics is hard to generate and easy to verify.
No duty is more important than repaying favors.
Norms against pettiness exist to keep defections from spreading between games.
Not every error should be called folly.
One has only so much time and energy to decide which battles to fight.
Patience is a virtue, but time is a resource.
Patience is humility with respect to time.
Philosophy is easy to generate and hard to verify.
Reversed inelegance is not fashion.
Reversed selfishness is not charity.
Science deals with measurable things.
Science progresses funeral by funeral; funerals progress bioethics conference by bioethics conference.
Second in command is a meaningless position.
Sentences combined to form people.
Some punishments make the recipients more evil.
Testability is a property of pairs of hypotheses.
The best fate is to have never existed.
The best way to criticize a world is to build a better world.
The classic example of phenomena well modelled by a Poisson process is deaths due to horse kick in the Prussian army.
The longer the delay between action and feedback, the harder the skill is to learn.
The nose is but the buttocks of the eyes.
The only promise a puzzle makes is an answer.
The opposite of a glitch is a momentary lapse from chaos into pattern and beauty.
The ravings of madmen are too important to be left to madmen.
The secretmost beings are the wisest.
The set of fantasy world simulations is the same as the set of computer programs, but the probability measure is different.
The time has now come to rebuild on broader foundations.
The trick to arguing well in person is to have already argued well on paper.
The true name of any god is the source code that it would take to summon it.
Tomorrow is a new day with old feelings.
Tradeoffs too dreadful to imagine will be decided without awareness.
Trust is not an argument that can be won or lost.
When God speaks, there are no quotation marks.
Your afterlife is the long-term effects of your actions as they pertain to your goals.